Answer:
= 6.32 Joules
Step-by-step explanation:
The heat given off by a substance while changing from liquid state to solid state without change in temperature is given by the formula;
Q = n×Lf
where, Q is the heat quantity, n is the number of moles and Lf is the molar heat of fusion. The methanol HF is 3.16 kJ/mol.
The number of moles = 64 g/32 g/mol
= 2 moles
Therefore;
Heat = 2 moles × 3.16 kJ/mol
= 6.32 Joules